How To Get The Value of XDocument Using C#

Question

Hi My Code Masters,

 

Trust you all are doing just fine.

 Please I  want to get the Values of this Element <PrescribedRegimenTypeCode>ART</PrescribedRegimenTypeCode> from my XML files if the vale is ART i will then count Regimen else i will not. so i use this code

 

int RegimenCounter = 0;
string result = "";
if(!string.IsNullOrEmpty(result=xd.Descendants("PrescribedRegimenTypeCode").Single().Value))
{
    if (result == "ART")
    {
      RegimenCounter = xd.Descendants("Regimen").Count();
    }
}

 

when i execute the code i am getting an exception error "Sequence Contain no Element". it because the first XML file does not contain that Element "PrescribedRegimenTypeCode" while other files have in them.

please i need your help to resolve this challenge.

thank you